连接不上openfire服务器

代码如下:
new Thread(new Runnable() {
@Override
public void run() {
//先与openfire服务器建立连接
XMPPTCPConnectionConfiguration.Builder configBuilder = XMPPTCPConnectionConfiguration.builder();
//设置XMPP域名
try {
configBuilder.setXmppDomain("127.0.0.1");
} catch (XmppStringprepException e) {
e.printStackTrace();
}
//设置主机位置（即服务器ip）
try {
InetAddress address=InetAddress.getByName("127.0.0.1");
configBuilder.setHostAddress(address);
} catch (UnknownHostException e) {
e.printStackTrace();
}
//设置端口号
configBuilder.setPort(5223);
//设置不验证，否则需要TLS验证
configBuilder.setSecurityMode(ConnectionConfiguration.SecurityMode.disabled);
//设置更改用户当前状态（在线、离线等）
configBuilder.setSendPresence(false);
/* configBuilder.setUsernameAndPassword("admin","xuan99102400..");*/
AbstractXMPPConnection connection = new XMPPTCPConnection(configBuilder.build());
// 连接到服务器
try {
connection.connect();
} catch (SmackException e) {
Logger.getLogger("falied");
e.printStackTrace();
}


抛出的异常如下：
org.jivesoftware.smack.SmackException$ConnectionException: The following addresses failed: 'null:5223' failed because: /127.0.0.1 exception: java.net.ConnectException: failed to connect to /127.0.0.1 (port 5223) from /127.0.0.1 (port 41318) after 30000ms: isConnected failed: ECONNREFUSED (Connection refused)

spark能连接得上服务器，会不会是android模拟器的原因。